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- Thread starter dmheat
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Before you commit to a filter ,just bear in mind, long term purpose of the filter.
Is to prevent sludge accumilating into your boiler .
PS any magnet that is in DIRECT contact with hot water over prelonged period of time looses its magnetism .
If you were to have that magnet in a sleeve (Dry Pocket) then this would not affect the magnet at all ,as it doesnt come in contact with hot water.
Just remember is there anyone out there that will give you a 10 year warranty on the magnet !
Is to prevent sludge accumilating into your boiler .
PS any magnet that is in DIRECT contact with hot water over prelonged period of time looses its magnetism .
If you were to have that magnet in a sleeve (Dry Pocket) then this would not affect the magnet at all ,as it doesnt come in contact with hot water.
Just remember is there anyone out there that will give you a 10 year warranty on the magnet !
F
Fishpond
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Fishpond
can't speak for the mb3 yet, but I flushed a mb2 yesterday on a service and it flushed out loads of magnetite and debris. I have installed a few mb3s now, but not yet been back to service the boilers so don't know how effective they are. That being said, all the spiotech marketing blurb says they are better than the mb2s which is why I fit them now...
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petercj
I give my MB a quick blast every three months or so.
According to the blurb that comes with the unit, the magnet is there to retain the particles that are filtered out by the spiral action.
Whereas most of the modern filters aim to use their magnets to pull out the magnetite.
If I was seeing a chamber packed with magnetite I'd be thinking about a power-flush, or some kind of general clean and refill.
According to the blurb that comes with the unit, the magnet is there to retain the particles that are filtered out by the spiral action.
Whereas most of the modern filters aim to use their magnets to pull out the magnetite.
If I was seeing a chamber packed with magnetite I'd be thinking about a power-flush, or some kind of general clean and refill.
F
Fishpond
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DirksPlumbing
Can you elaborate that to me? As normally temperature is one thing and that does not make any difference between dry or wet pocket and the other factor would be chemical attack. Now if I believe that a rad has totally unprotectet 0.7mm steel and that tends to last 30+ years what does that tell me about a Ni coated sinter magnet of 20mm?
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petercj
The degeneration of steel will depend on the quality - British steel was some of the best in the world, and would outlast most of the foreign stuff by many years. I wouldn't bank on 30 years from modern rads - more like half that on the cheaper ones. Salt and oxygen will enable and accelerate the process of deterioration.
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DirksPlumbing
Yes but the radiators for Britain always had to be designed for use in open vented systems and/or soft water areas.
These had to be specified of either a reasonable gauge or quality.
A sealed oxygen tight system only asks for a reasonable paint quality outside as there would be very limited oxidation within the system. Unless you have very soft water with no buffer capacity and possible ingress of phosphor for example.
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petercj
I see you have used the past tense.
Technology in the market place tends to be led by profit rather than quality, and has been pushing plastics towards greater reliability, and metals (in things like radiators) in the opposite direction.
What is a problem for me is that I have some understanding of metals, but very little knowledge of plastics.
Modern plastics vary widely in durability and application, and can be molded into complex shapes during mass production - but how does the lay-person tell good plastic from bad? If I saw a technical formula it wouldn't mean a lot to me.
The Magnabooster is a heavy chunk of brass, and I have every confidence that it will outlast the boiler, and probably me as well!
But if they started making them out of plastic, I wouldn't have a clue, and would have to rely 100% on the manufacturer's word that the thing would last.
No doubt plastic is the future, probably for radiators too, but how will the average person find some confidence in it?
We seem to import goods into this country with very little concern for quality, so who will know if the latest Chinese bit of plastic kit will last 2 years, or ten +? Even if a standard is set, it will likely be monitored and funded by the industry concerned.
Profit is the main concern - and many a modern business is: 'here today and gone tomorrow'.
I think we need more education in modern materials.
i have been to china regarding the centramag filter ,to check the quality and price .
The chinese do churn out a lot of plastic parts but have not perfected the finish like the uk .
The problem with brass filters ,is , you cannot control the commodities market !
It is a myth to say china is cheap ,there wage demands are higher ,50% of the factories are deserted due to lack of orders
I was offered a mb2 in china for 11usd that is about £7 ,the mb2 is made in china ,i suppose the mb3 is also.
The chinese do churn out a lot of plastic parts but have not perfected the finish like the uk .
The problem with brass filters ,is , you cannot control the commodities market !
It is a myth to say china is cheap ,there wage demands are higher ,50% of the factories are deserted due to lack of orders
I was offered a mb2 in china for 11usd that is about £7 ,the mb2 is made in china ,i suppose the mb3 is also.
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petercj
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petercj
Still room for a good profit though.
To able to cast and machine the MB2 in solid brass, and get it in a box and clear a profit for seven pounds, is both amazing and slightly depressing imo.
They do have a magnet, but it's only a small circular magnet in the base, and I don't think it's a rare earth magnet, so probably costs very little.
I see China produces around 75% of the world's rare earth magnets - so perhaps your's has a Chinese element inside? But good for you for having it mainly manufactured in GB.
I'm still in two minds as to whether the MB is old tech, or just different tech, i.e. "old tech" as it relies on the spiral filter rather than magnetic pulling power.
I'd like to see your filter second in line to a MB to see how much is missed by the MB, and how much gets picked up by the Centramag.
I would think the way forward is for someone to design an effective filter that doesn't rely on an expensive magnet, so maybe the old filtering tech of the MB will be useful in the future - although in modified form.
I haven't been to China (would love to go though) - they have been hit by this world recession because the rest of the world is their sales floor, but it hasn't stopped them stock-piling base materials.
The MB2 that i saw in china it didnt have a magnet inside ,i have opted for a grade n52 ,which is the highest grade magnet that you can get ,I do not want to lower the grade to save money like a top selling branded filter has recently done and they are selling 30k filters a month and if you phone them up they will never give you the gauss power of the magnet.
This particular brand has bought 2 centramags to check the magnet and design out from one of our retail merchants!!!!!!!!!
This particular brand has bought 2 centramags to check the magnet and design out from one of our retail merchants!!!!!!!!!
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petercj
Would be good marketing to put the Centramag second in line to show what the competition misses and how your filter grabs it.
You wouldn't need to put a name to the competition, as most people fitting filters will recognise straight
away.
MB magnet shown here - it's only a tiny thing...
http://www.magnabooster.co.uk/
You wouldn't need to put a name to the competition, as most people fitting filters will recognise straight
away.
MB magnet shown here - it's only a tiny thing...
http://www.magnabooster.co.uk/
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what i am seriously thinking of, is to have a dirty video competition ,a holiday for 2 to spain all inclusive in a top hotel but run the competition for 12 months .
What you are suggesting is a good idea where if the other filters missed any debris centramag would catch it
What you are suggesting is a good idea where if the other filters missed any debris centramag would catch it
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petercj
Why not do both?
The second in line demo might be better done on a rig by an independent tester?
The second in line demo might be better done on a rig by an independent tester?
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